A cold air and ion composite propulsion system

Abstract

The invention discloses a cold gas and ion compound propulsion system. The system comprises an ion propulsion system, a cold gas propulsion system, a power supply and a controller, wherein the ion propulsion system is used for main propulsion of an spacecraft and comprises an ion propeller, a neutralizer, a storage and supply unit and a solid-state microwave source; the storage and supply unit is connected with the ion propeller and the neutralizer to supply xenon to the ion propeller and the neutralizer; the solid-state microwave source is connected with the ion propeller and the neutralizer to supply microwaves to the ion propeller and the neutralizer; the cold gas propulsion system is used for short-time rapid maneuvering and attitude control of the spacecraft and comprises a cold gas thruster, and the storage and supply unit of the ion propulsion system is connected with the cold gas thruster to supply xenon to the cold gas thruster; the power supply is used for supplying power to the ion propulsion system and the cold gas propulsion system; the controller is used for precise control of the states of the ion propulsion system and the cold gas propulsion system. The cold gas and ion compound propulsion system has the advantages as follows: rapid maneuvering of the spacecraft is realized through cold gas propulsion, long-time and long-distance acceleration is realized through ion propulsion, and the propulsion system has high specific impulse.

Description

technical field [0001] The invention relates to the field of space propulsion technology, in particular to a cold air and ion composite propulsion system. Background technique [0002] Traditional propulsion systems use chemical or cold air propulsion systems. The former requires a large amount of fuel, while the latter has a low service life. For future micro-nano spacecraft, there is an urgent need for a propeller with fast maneuverability and long-term acceleration. It needs to do To not only save energy, but also have a long working life. [0003] The ion thruster has a higher specific impulse but a smaller thrust, and the cold air thruster has a lower specific impulse but a greater thrust. The former is used for long-term high-efficiency work, and the latter is used for short-term high-thrust maneuvers. In the current domestic propulsion system, a satellite has an independent air-conditioning propulsion system and a complete ion propulsion system. Contents of the inv...

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Problems solved by technology

[0004] The purpose of the present invention is to provide a cold gas and ion composite propulsion system, use the cold gas propulsion system to realize the rapid function of the spacecraft, use the ion thruster to achieve long-term, long-distance acceleration, and solve the specific impulse of the traditional chemical and cold gas propulsion systems. Low problem, can greatly save fuel weight, increase working life, has broad application prospects in the field of micro-nano spacecraft technology in the future

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